4.7
62 Ratings with 42 written Reviews
Summary
Dr. Mark Wallis is a dermatologist who specializes in dermatologic surgery, bringing 38 years of experience to his practice. He earned his medical degree from the University of Texas Health Science Center at San Antonio Joe R. and Teresa Lozano Long School of Medicine. Dr. Wallis is fluent in both English and Spanish.
Dr. Wallis maintains his practice at Wallis Dermatology Associates with locations in Marshall and Longview, Texas, and holds hospital privileges at Longview Regional Medical Center. He treats patients with psoriasis and skin cancers, including squamous cell and basal cell carcinomas. His surgical expertise includes performing pathology tests and specialized procedures like kidney transplant biopsies. Patients rate Dr. Wallis 4.7 out of 5 stars on average.
Dr. Wallis maintains his practice at Wallis Dermatology Associates with locations in Marshall and Longview, Texas, and holds hospital privileges at Longview Regional Medical Center. He treats patients with psoriasis and skin cancers, including squamous cell and basal cell carcinomas. His surgical expertise includes performing pathology tests and specialized procedures like kidney transplant biopsies. Patients rate Dr. Wallis 4.7 out of 5 stars on average.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 38 years of experience
- speaks English, Spanish
- Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med
- 42 written reviews
- 2 specialties
- 12 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 3 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Mark S Wallis has 3 locationsWallis Dermatology Associates
1900 S Washington Ave Ste EMarshall, TX 75670 Tel: (903) 503-7330
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed
Wallis Dermatology Associates
3535 4th St Ste 400Longview, TX 75605Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Mark S Wallis, MD | Trisha Khanna, MD, FAAD | Anne E Allen, MD | Dr. Ryan Trowbridge, MS, MA, MD |
| Dermatology | Dermatology | Dermatology | Dermatology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 38 Years of Experience | 8 Years of Experience | 9 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English, Spanish, Italian, Hindi | Speaks English | Speaks English |
| Marshall , TX | Orlando , FL | Knoxville , TN | Elkhorn , NE |
| Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med | Med School: Columbia University College Of Physicians & Surgeons | Med School: University Of Michigan Medical School | Med School: Creighton University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark S Wallis
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Mark S Wallis has the following 2 specialties
Specialty Expertise
Dr. Mark S Wallis has the following 12 areas of expertise
Certifications, License, & Education
38 Years Experience
Dr. Mark S Wallis holds an expired medical license in the state of Texas.
Medical License
Medical Doctor with an expired medical license in the state of Texas that expired in 2025.
Education & Training
Medical School
Graduated from Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med in 1988.
NPI Number
Dr. Wallis' NPI number is 1861489049.
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Frequently Asked Questions
- Is Dr. Mark Wallis accepting new patients?
- Dr. Mark Wallis is accepting new patients on Vitals. View Dr. Mark Wallis's profile on Vitals to make an appointment.
- What languages does Dr. Mark Wallis speak?
- Dr. Mark Wallis speaks English and Spanish.
- Does Dr. Mark Wallis accept my insurance?
- You can see the insurance plans that Dr. Mark Wallis accepts on their Vitals profile.
- Which hospitals is Dr. Mark Wallis affiliated with?
- Dr. Mark Wallis is affiliated with Longview Regional Medical Center Lp.
- How can I make an appointment with Dr. Mark Wallis?
- You can find contact information for Dr. Mark Wallis here on Vitals.
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